rhind



3 Sheets-Sheet 1. F. RHIND. ARGAND LAMP.

(No Model.)

f Patented June 23, 1891.

INVENTOR ATTORNEY.

(No Model.)

3 Sheet-Sheet 2. F. RHIND. ARGAND LAMP.

[7342), Patented June 23, 1891.

gWITNESSEfgjf INVENTOR gym ATTORNEY.

n1: nokms Pnms co.. Puma-mm, w swm-ou, 0. c.

(No Model.) 3 Sheets-Sheet 3.

P. RHIND.

ARGAND LAMP. No. 454,528. Patented June 23,1891.

WITN ESSES. INVENTOR ATTORNEY.

in: News warns 20,, move-urns, WAsmNnYon, n c.

UNITED STATES PATENT OFFICE.

FRANK RIIIND, OF MERIDEN, CONNECTICUT, ASSIGNOR OF ONE-HALF TO THE EDIVARD MILLER 8: COMPANY, OF SAME PLACE.

ARGAN D LAM P.

"SPECIFICATION forming part of Letters Patent No. 454,528, dated June 23, 1891. Application filed December 6, 1890. Serial No. 373,835. (No model.)

To aZZ whom it may concern.-

Be it known that I, FRANK RHIND, a citizen of the United States, residing at Meriden, Connecticut, have invented a new and useful Improvement in Argand Lamps, of which the following is a specification.

My invention relates to the wick-adjusting mechanism of Argand lamps, and is intended to produce a cheap and simple device which shall not be open to the objections heretofore urged against those of the same general charinner wick-tube; C, a wick; D, a wick-adj usting sleeve; (1, a depression in the sleeve D; E, a wick-adjusting shaft or red; E, a button or thumb-piece on the shaft E; e, a cog or spur wheel also on the shaft E; c, Fig. 4, a sleeve connected with the shaft E; e", Figs. 5 and G, teeth on the shaft E; F F, bearings for the shaft E; G, Figs. 4, 5, and 6, a tube or guide passing through the font A.

In the example of my invention illustrated in Figs. 1 and. 2 of the drawings the lamp fount or body A and inner wick-tube B may be of any desired size and form. The wick-adjusting sleeve D is provided with a spirallyarranged row of depressions (I. As shown, they consist of perforations in the sleeve and together form a rack adapted to engage with the pinion or cog wheel e. The wick-adjusting shaft E is of ordinary construction, provided at its free end with a button or thumbpiece E, and also provided with the usual pinion or spur wheel. 6. The axle of the shaft Eis inclined, so that its free end passes out of the top of the fount A, preferably above the level of the feeder-opening. The shaft is supported in bearings F F, as shown in Fig. 1.

The rack formed of the row of depressions or perforations d is preferably inclined at an angle of ninety degrees with the shaft E. It is obvious that a rotation of the shaft E, communicated to it through the button E, will act to raise or lower the sleeve D, and with it the wick C, in a spiral directioni. 6., the sleeve and wick will move on the tube 13 as a nut moves upon a bolt.

In Fig. 3 I have shown the sleeve D as transversely beaded or corrugated throughout its length, so that the depressions (Z run around the sleeve at right angles to its axis. It is plain that the operation of the device will be as before explained, except that on account of slip the rotation of the wicksleeve and wick may be less in proportion to the vertical motion. In this case I have shown the bearing F as a slot in the collar of the fount A, to be closed by the removable portion of the burner, which is not shown in the drawings. In this construction the shaft E may be removed from the fount A by first removing the detachable burner portion.

In Fig. a of the drawings I have shown a form of my device applied to a lamp which is adapted to be suspended from above. In this construction the inclined tube G passes through the fount A, being securely soldered to the side of the fount at its lower end. Through this tube G the shaft E passes. The shaft E is provided at each end with a button E. At the higher end of the inclined shaft E a sleeve 6, surrounding the tube G, is secured. The pinion e is secured to the sleeve 6', and is adapted to engage with the depressions (Z in the sleeve D, as above described. It is evident that a rotary motion of either button E will be communicated through the sleeve 6 to the spur wheel or pinion c, and that the wick-sleeve D and wick C will be moved spirally on the tube B, as before. I have here shown the sleeve D as made of perforated metal, so that there are several parallel spiral rows of perforations d, any of which may engage with the pinion c.

In Fig. 5 of the drawingsl have shown the shaft or rod E as longitudinally movable in the slotted tube or guide G. Through the slot in the tube G the teeth e" project, as shown in detail in Figs. 6 and 7. These teeth e" engage with the rows of perforations or depressions d in the wick-sleeve D, as before. It will be understood that a partial withdrawal of the shaft or rod E will act to move the sleeve D and wick C spirally upward, and that an inward movement of the shaft E will in like manner cause a spirally-downward motion of the sleeve and wick.

It is evident that many mechanical changes in addition to those indicated may be made without departing from my invention, which I conceive to be the employment of a wickadjusting sleeve provided with rows of perforations or depressions, in combination with means, as teeth, adapted to engage therewith, so that a spiral motion may be given to said wick-sleeve and the wick supported thereby in an Argand lamp. This spiral motion is particularly advantageous when the wick has gummed or adhered to the inner wick-tube through long disuse of the lamp.

Another advantage over a former mode of construction may be noted. here the wickadjusting shaft is horizontal, as heretofore made, it must be either wholly above or wholly below the highest level of oil in the fount. If the former, the distance which oil must be lifted by the capillary action of the wick is increased. If the latter, leakage is unavoidable, as it is found practically impossible to pack the projecting'end of the shaft tightly enough to hold the light hydrocarbons now used in illumination.

IVhen in the claims I use theword depressions as applied to the wick-adj usting sleeve, I desire to be understood as including perforations or equivalent means by which the sleeve is adapted to engage with teeth or the like on the wick-adjusting shaft or rod.

When in the claims I speak of a sleeve having a rack arranged diagonally to its axis it is evident that I intend to include the form of construction, shown in Fig. 8 of the drawings, in which the rack2'. a, the path traveled by the teeth of the pinion in their engagement with the sleeve is diagonal to the axis of the sleeve.

What I claim as my invention, and desire to secure by Letters Patent of the United States, is as follows:

1. In an Argand lamp, a wick-adj usting device consisting of a sleeve adapted to support the wick, a rack on said sleeve arranged diagonally to its axis, an inclined shaft or rod, and teeth adapted to engage with said rack,

whereby aspiral motion may be communicated to said sleeve, substantially as described.

2. In an Argand lamp, in combination, a

wick-adjusting sleeve, depressions in said sleeve, an inclined shaft or rod, and teeth adapted to engage with said depressions and to communicate a spiral motion to said sleeve, substantially as described. 3. In an Argand lamp, in combination, an inclined shaft, apinion mounted on said shaft, and a wick-adjustingsleeve provided with a rack arranged diagonally to its axis and adapted to engage with the teeth of said pinion, by which said sleeve is adapted to receive a spiral motion from the rotation of said pinion, substantially as described.

4. In an Argand lamp, in combination, an inclined shaft, one end of which passes out of the top of the lamp-fount, a pinion mounted on said shaft, and a wickadjusting sleeve provided with depressions adapted to engage with the teeth of said pinion, by which said sleeve is adapted to receive a spiral motion from the rotation of said pinion, substantially as described.

5. In an Argand lamp, in combination, an inclined shaft which passes through the lampfount, a pinion. mounted on said shaft, and a wick-adjusting sleeve provided with depressions adapted to engage with the teeth of said pinion, by which said sleeve is adapted to receive a spiral motion from the rotation of said pinion, substantially as described.

6. In an Argand lamp, in combination, a removable inclined shaft, a pinion mounted on said shaft, and a wick-adjusting sleeve provided with depressions adapted to engage with the teeth of said pinion, by ,which said sleeve is adapted to receive a spiral motion from said pinion, substantially as described.

'7. In an Argand lamp, in combination, a

lamp body or fount, an inclined tube, passing through said fount, a shaft passing through said tube, a sleeve connected with the upper end of said shaft and surrounding said tube, a pinion on said sleeve, and a wick-adjusting sleeve provided with depressions adapted to engage with the teeth of said. pinion, bywhich said wick-sleeve is adapted to receive a spiral motion from the rotation of saidpinion, substantially as described.

FRANK RHIND. Witnesses:

GEO. L. COOPER,

S. .T. ROBY. 

